CVE-2021-43399

Exploit

EPSS 0.37%
Veröffentlicht 08.12.2021 19:15:10
Zuletzt bearbeitet 21.11.2024 06:29:10
Quelle cve@mitre.org
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The Yubico YubiHSM YubiHSM2 library 2021.08, included in the yubihsm-shell project, does not properly validate the length of some operations including SSH signing requests, and some data operations received from a YubiHSM 2 device.

Betroffene Produkte Warnungen 0 Metriken 3 CWE 1 Referenzen 5

Daten sind bereitgestellt durch National Vulnerability Database (NVD)

Yubico ≫ Yubihsm 2 Software Development Kit Version <= 2021.08

Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.

EPSS Metriken
Typ	Quelle	Score	Percentile
EPSS	FIRST.org	0.37%	0.559

CVSS Metriken
Quelle	Base Score	Exploit Score	Impact Score	Vector String
nvd@nist.gov	7.5	3.9	3.6	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov	7.8	10	6.9	AV:N/AC:L/Au:N/C:N/I:N/A:C

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://blog.inhq.net/posts/yubico-yubihsm-shell-vuln3/

Third Party Advisory

Exploit

https://www.yubico.com/support/security-advisories/ysa-2021-04/

Vendor Advisory

https://nvd.nist.gov/vuln/detail/CVE-2021-43399

CVE Source (NVD)

https://cveawg.mitre.org/api/cve/CVE-2021-43399

CVE Source (JSON)

https://euvd.enisa.europa.eu/vulnerability/CVE-2021-43399

EUVD